On the latest episode of Cosmos: A Space-Time Odyssey, viewers learned that light is much more than it seems.

Episode five took viewers on a journey through the history of what humans have discovered about the many variations of light and how looking at an image through different forms of light can reveal previously unnoticed details.

The episode walked viewers through Isaac Newton's discovery that white light from the sun is actually made up of a multitude of colors, William Herschel's discovery that light carries colors human eyes can't see, and more. It ended with an example of light the eye's pupils can't detect, showing an image of New York City through x-ray, gamma ray, ultraviolet and other forms of light.

Cosmos, which is the 2.0 version of astronomer Carl Sagan's 1980s series of the same name, aims to teach viewers about space, time and the importance of science itself. It's hosted by Neil deGrasse Tyson, astrophysicist and director of the New York-based Hayden Planetarium, and executive produced by Family Guy creator Seth MacFarlane. It's slated for 13 episodes that run every Sunday at 9 p.m. on Fox.

As has become something of a tradition, NASA tweeted a few photos to go along with the themes of the show on April 6. We have those pictures, below.

Cosmos Light

1. This photo demonstrates the various spectrums of light.

   Image: NASA

2. Here, the same photo of the Carina Nebula is shown in visible and infrared light.

   Image: NASA

3. The Hubble Space Telescope drifts above Earth.

   Image: NASA

4. The sun, glowing green and blue in ultraviolet light.

   Image: NASA

5. The field of astrophysics, in which Tyson is a specialist, has helped uncover new information about the universe by literally shedding new light on it.

   Image: NASA

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